Size:5.5''(L=140mm) x 4.5''(W=115mm) x 0.2''(H=5mm) 

Available grit: P600-P500 Super Fine ,  P1000-P800 Ultra Fine ,  P1500-P1200 Microfine Fine , P2000-P1800 X-Microfine Fine . 

The sponge grinding block, square sponge sandpaper with a special sponge as the substrate, is coated with a layer of high-performance mineral sand on the surface so that the product not only maintains a high-performance grinding effect but also has the characteristics of elasticity, easy to use and dry and wet.  
 
Adopting German micro-nano sand planting process, the product has uniform distribution of sand particles. Sharp grinding, durable.

It is suitable for all kinds of metal and wood products, furniture manufacturing, mobile phone shells, 3C products, jade, the DIY industry，automobile repair and metal rust. It can get twice the result with half the effort in the injection molding industry. 
 
It can handle the slip marks and burrs on the surface of injection-molded products, and can also be polished. 

It is suitable for polishing and grinding various planes and curved surfaces.  

Resistant to water and grease, it can be immersed in water for a long time, and can be used in both wet and dry environments.
 
Attention: 

1, Rough sand surface needs to be operated with caution! Its main role is to change the shape. Such as: walnut get rid of the tip, diamond Tibetan sanding and so on.
2, fine sand surface is mainly used for wooden type of cultural curiosity or old gold and silver jewellery polishing before polishing.
3, polishing surface to dry throwing! Polishing, the faster the frequency of action, the better the effect. This surface is used more 
4, grinding and polishing, always back and forth in one direction. Avoid horizontal use + vertical use